20463915

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31727}}^1$

素因数の和:31778

約数の個数: 16

約数和(自身を含む): 33504768

約数和(自身を除く): 13040853

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31727, 95181, 158635, 475905, 1364261, 4092783, 6821305, 20463915]

約数ペア:

[(1, 20463915), (3, 6821305), (5, 4092783), (15, 1364261), (43, 475905), (129, 158635), (215, 95181), (645, 31727)]